Senior Backend Engineer, UK

In this role you design and evolve backend capabilities for a global, AI-enabled platform used by millions. You’ll shape technical direction across product, frontend, data, and security, balancing reliability, performance, and scalability. You’ll work asynchronously with cross-functional teams, mentor engineers, and drive high-impact architectural decisions. You’ll experiment with agentic AI to improve production engineering workflows and build resilient systems.

• Flexible Paid Time Off
• Equity compensation & ESPP
• Growth and development fund
• Parental leave
• Team member resource groups

• Design and ship moderately complex backend features with minimal guidance
• Define backend standards for style, maintainability, APIs, testing, and operational readiness
• Mentor associate and intermediate engineers and remove technical blockers
• Diagnose and prevent performance/reliability issues at scale; participate in incident response
• Integrate AI into production engineering workflows and coach others on responsible use

• Deep Backend expertise in architecture, APIs, data systems, and performance tuning
• Adaptability with modern backend languages and systems programming
• Architectural judgment for modular boundaries and migration-safe architectures
• Ability to influence through technical judgment and clear written communication
• Agentic AI expertise: building/operating AI-enabled production systems

• Influence and leadership
• Clear written communication
• Cross-functional collaboration
• Backend architecture
• APIs
• Data systems